Deck Permit requirements across Colorado
By Mario Bailey Last verified 2026-06-17
Requirements and size thresholds for deck permits vary by locality. The table below compares what each Colorado county or city requires. Always confirm with the local office before starting.
| Locality | Permit required? | Typical threshold |
|---|---|---|
| Denver | Conditional | uncovered decks under 12 in off the ground require no permit; 12 in or more requires a zoning permit; 30 in or more also requires a building permit |